Operation
Operation
NOTICE
Do not expose the air motor to temperatures
higher than 120°F(49°C) or the immersed fluid
pump to temperatures higher than 250°F(121°C).
Excessive temperatures may damage the pump
packings and seals
Pressure Relief Procedure
Trapped air can cause the pump to cycle
unexpectedly, which could result in serious injury
from injection, splashing or moving parts. Relieve
pressure when you stop pumping and before
cleaning, checking, or servicing equipment.
1. Shut off the air supply to the pump.
2. Close the bleed-type master air valve (required
in system).
3. Open the fluid ball valve and/or dispensing valve
to relieve fluid pressure.
Flush Before First Use
The sanitary pump was assembled using sanitary
lubricant on moving parts and was tested in
water. Flush the pump thoroughly with an
appropriate cleaning solution or disassemble and
sanitize the parts before using the pump. See
Flushing Procedure, page 9
. Check national, state,
and local codes for specific limitations.
Adjusting the Pump Speed and
Pressure
Set pressure regulator to 0 psi. Open the bleed-type
master air valve. Adjust the pump air regulator until
the pump is running smoothly.
Allow the pump to cycle slowly until all air is pushed
out of the lines (the fluid will flow in a steady stream
from the fluid outlet) and the pump is primed.
With the air supply turned on, the pump will start
when the dispensing valve is opened and stall
against pressure when the valve is closed. In a
circulating system, the pump operates until the air
supply is turned off.
NOTICE
Never allow the pump to run dry of fluid. A dry
pump will accelerate to a high speed, possibly
damaging itself.
If the pump accelerates quickly, or is running too
fast, stop the pump immediately and check the fluid
supply. If the supply is empty and air has been
pumped into the lines, refill the container and prime
the pump and lines with fluid. Be sure to eliminate all
air from the system.
Pump Shut Down
Follow the
Pressure Relief Procedure, page 8
.
Always stop the pump at the bottom of its stroke to
prevent fluid from drying on the displacement rod.
(The air motor will exhaust at the bottom or top of
the stroke.)
8
3A0733P
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